The International Horticultural Exhibition(世界园艺博览会) 2019 Beijing opened to the public on Monday at the foot of the Great Wall in the Chinese capital’s Yanqing District. Chinese President Xi Jinping declared the     1     (open) of the Beijing expo on Sunday evening.

Sharing with the world the concept and approach of green development, the expo demonstrates Chinese people’s     2       (determine) and confidence in building a beautiful China and a beautiful world.

The Beijing expo       3     (schedule) between April 29 and Oct.7, lasting 162 days.    4     is the second time that China has held such a horticultural expo. The southwestern Chinese city of Kunming held the horticultural expo in 1999.The Beijing expo has drawn participation of about 110         5     (country) and international organizations as well as more than 120 non-official exhibitors. About 2,500     6     (culture) activities, such as parades and performances of world ethnic cultures, will be held throughout the expo,     7     average of 15 for each day.

Over the past 40 years, China’s forest area and forest stock volume have both doubled and its forest coverage rate     8     (increase) to 21.66 percent. The country is home     9       the world’s largest man-made forest in scale, with a preserved area of 69 million hectares. A recent Boston University study     10     (base) on NASA satellite data shows that China alone accounts for 25 percent of the global net increase in leaf area over the last two decades.

Earth Day     1    (found) in 1970 as a day of education about environmental problems, and Earth Day 2020 occurred on Wednesday, April 22—the holiday’s 50th anniversary. The holiday is now a global celebration that's sometimes extended into Earth Week, a full seven days of     2     (event) which focused on green living.

    3    (elect) to the U. S. Senate (参议院)in 1962, Senator Gaylord Nelson was determined to convince the federal government that the planet was     4     risk. In 1969, Nelson developed the idea for Earth Day after     5     (inspire) by the anti-Vietnam War “teach--ins” that were taking place on college campuses around the United States.

Denis Hayes, a young activist     6    had served as student president at Stanford University, was selected as Earth Day’s national coordinator (协调者), and he worked with     7    group of student volunteers and several staff members from Nelson’s Senate office     8     (organize) the project.

The first Earth Day was effective at raising     9    (aware) about environmental problems and transforming public attitudes. Earth Day kicked off the “Environmental decade with a bang,” as Senator Nelson later put it. The theme of Earth Day 2020 was “climate action”. Earth Day. org hoped it would be the     10     (large) volunteer event in history.

【推荐2】BEIJING·China will establish a new special economic zone in the    1    (heavy) polluted province of Hebei to promote integration（一体化）with    2    neighboring cities of Beijing and Tianjin, the government has announced.

The Xiongan New Area will be    3    the same national importance as the Shenzhen Special Economic Zone,    4    helped kick-start China's economic reforms in 1980,the official Xinhua news agency said, citing a circular released by the Chinese Cabinet.

The new special economic zone    5    (locate) around 100km south-west of Beijing, close to the Hebei provincial capital of Shijiazhuang and will house some of Beijing's relocated "non-capital functions". It is currently only 100 square kilometers in area    6    will eventually be expanded to 2,000 square kilometers.

Beijing, home to 22 million people,    7    (try)to control population growth and relocate industries and other non-capital functions to Hebei in the    8    (come) years as part of its efforts to prevent pollution and crowdedness.

The removal of non-capital functions from Beijing is part of a greater strategy to integrate the development of Beijing, Tianjin and Hebei for a better economic structure,    9    (clean) environment and improved public    10       (serve).

The eco-friendly tea gardens in Pu’er, Southwest China’s Yunnan Province, have resulted     1     many environmental and economic benefits for the city.

The tea gardens produce green, organic, safe, and high-quality tea that is characterized by growing many plant species without     2     use of fertilizers or pesticides (化肥或农药).

Such gardens are     3       (benefit) to the ecosystem, the protection of soil and water, the microclimate within the garden, and the sustainable development of the tea industry,     4     is Pu’er’s No. 1 pillar industry.

Requiring low consumption (消耗) of natural resources, tea production     5       (regard) as a green industry with high added value. That means more than half the city’s yearly GDP comes from tea.

In 2010, the government carried out a project to build eco-friendly tea gardens,     6       (change) all such tea gardens across the city in the following three years.

Each tea garden is required     7       (plant) eight to ten species that will provide shade for 30 percent of each 0.067 hectare plot.

Ever since the project was carried out, it     8       (improve) the environment in the tea gardens, and prevented the use of chemical fertilizers and pesticides. The project has also helped to     9       (continuous) improve the quality of tea, raising the earnings of businesses and tea     10       (farm).